从 None 引发 KeyError(key)

Question

我收到一条错误消息，但不知道如何继续，错误消息显示在下面。我已经下载了它运行所需的所有工具，但密钥似乎有问题。我已经正确输入了它们，但是为了保持我的帐户的私密性，我已隐藏帐户用户名和密码。提前致谢

C:\Users\User\Downloads\real-time-intrinio-python-master\real-time-intrinio-python-master> python realtime.py AAPL 
Using Ticker: AAPL 
Traceback (most recent call last):
  File "realtime.py", line 18, in <module>
     r=requests.get(auth_url, headers={"Authorization": "Basic %s" % base64.b64encode(os.environ['myUsername'] + ":" + os.environ['myPassword'])}) 
  File "C:\Users\User\AppData\Local\Programs\Python\Python36-32\lib\os.py", line 669, in __getitem__
     raise KeyError(key) from None 
KeyError: 'myUsername'

这是我正在使用的代码，第 18 行是“r=requests.get(auth_url, headers...”

import websocket
import _thread
import time
import requests
import base64
import json
import sys
import os
from requests.auth import HTTPBasicAuth

try:
    print ("Using Ticker: " + str(sys.argv[1]))
except:
    print ("Please include ticker as first argument")
    sys.exit()

auth_url = "https://realtime.intrinio.com/auth";
r=requests.get(auth_url, headers={"Authorization": "Basic %s" % base64.b64encode(os.environ['7641353c8540cd7c795c96f097185c26'] + ":" + os.environ['c15d32295cf254ab57d5523c5bf95f80'])})

socket_target = "wss://realtime.intrinio.com/socket/websocket?token=%s" % (r.text)

def on_message(ws, message):
    try:
        result = json.loads(message)
        print (result["payload"])
    except:
        print (message)

def on_error(ws, error):
    print ("###ERROR### " + error)

def on_close(ws):
    print ("###CONNECTION CLOSED###")

def on_open(ws):
    def run(*args):
        security = "iex:securities:" + str(sys.argv[1]).upper()
        message = json.dumps({"topic": security,"event": "phx_join","payload": {},"ref": "1"})
        ws.send(message)
    thread.start_new_thread(run, ())


websocket.enableTrace(True)
ws = websocket.WebSocketApp(socket_target, on_message = on_message, on_error = on_error, on_close = on_close)
ws.on_open = on_open
ws.run_forever()

Answer 1

总结并添加到对话中。

正如chickity 已经指出的那样，您需要设置环境变量。这可以使用 Python 或通过 CMD/终端来关闭。

# Set environment variables
os.environ['myUsername'] = 'username'
os.environ['myPassword'] = 'secret'

然而，在脚本中执行此操作可能会导致潜在的致命错误，即您的机密/密码被添加到 git 中。因此，建议通过 CMD 执行此操作。要永久添加环境变量，请使用setx. 有关更多详细信息和注意事项，请参阅这篇文章。

setx myUsername username
setx myPassword secret

完成此操作后，您可以将第 18 行更改为：

setx myUsername username
setx myPassword secret